<template>
  <el-container class="home-container">
    <!-- 头部 -->
    <el-header>
      <div>
        <img src="../assets/heima.png" alt />
        <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 主体 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollappse ? '64px' : '200px'">
        <div class="toggle-button" @click="toggleCollaps">|||</div>
        <!-- 侧边栏菜单区  :collapse="isCollappse"-->
        <el-menu
          :collapse-transition="false"
          :collapse="isCollappse"
          unique-opened
          background-color="#333744"
          text-color="#fff"
          active-text-color="#1289ab"
          :router="true"
          :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu :index="item.id + ''" :key="item.id" v-for="item in MenuList">
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- //图标 -->
              <i :class="iconObj[item.id]"></i>
              <!-- //文本 -->
              <span>{{ item.authName }}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item
              :index="'/'+menu_item.path"
              active-text-color="#4492ff"
              :key="menu_item.id"
              v-for="menu_item in item.children"
              @click="saveNavState('/'+menu_item.path)"
            >
              <template>
                <i class="el-icon-menu"></i>
                <span>{{ menu_item.authName }}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- main主体 -->
      <el-main>
        <!-- 路由站位 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
export default {
  data() {
    return {
      //左侧数据菜单
      MenuList: [],
      isCollappse: false,
      iconObj: {
        '125': 'iconfont icon-users',
        '103': 'iconfont icon-lock_fill',
        '101': 'iconfont icon-shangpin',
        '102': 'iconfont icon-danju',
        '145': 'iconfont icon-baobiao'
      },
      activePath: ''
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meat.msg)
      this.MenuList = res.data
      console.log(this.MenuList)
    },
    toggleCollaps() {
      this.isCollappse = !this.isCollappse
    },
    saveNavState(activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}
.el-main {
  background-color: #eaedf1;
}
.iconfont {
  margin-right: 10px;
}
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  color: #fff;
  line-height: 24px;
  letter-spacing: 2px;
  text-align: center;
  cursor: pointer;
}
</style>
